Pikus Corporation makes a product that has the following direct labor standards: In January the company's budgeted production was 3,400 units, but the actual production was 3,500 units. The company used 640 direct labor-hours to produce this output. The actual direct labor cost was $8,960. The labor rate variance for January is: A) $700 F B) $640 U C) $640 F D) $700 U